SYS.h revision 1.12 1 /* $NetBSD: SYS.h,v 1.12 2011/01/15 07:31:12 matt Exp $ */
2
3 #include <machine/asm.h>
4 #include <sys/syscall.h>
5
6 #ifdef __STDC__
7 #define _DOSYSCALL(x) li %r0,(SYS_ ## x) ;\
8 sc
9 #else
10 #define _DOSYSCALL(x) li %r0,(SYS_/**/x) ;\
11 sc
12 #endif /* __STDC__ */
13
14 #define _SYSCALL_NOERROR(x,y) .text ;\
15 .align 2 ;\
16 ENTRY(x) ;\
17 _DOSYSCALL(y)
18
19 #define _SYSCALL(x,y) .text ;\
20 .align 2 ;\
21 2: b _C_LABEL(__cerror) ;\
22 _SYSCALL_NOERROR(x,y) ;\
23 bso 2b
24
25 #define SYSCALL_NOERROR(x) _SYSCALL_NOERROR(x,x)
26
27 #define SYSCALL(x) _SYSCALL(x,x)
28
29 #define PSEUDO_NOERROR(x,y) _SYSCALL_NOERROR(x,y) ;\
30 blr ;\
31 END(x)
32
33 #define PSEUDO(x,y) _SYSCALL_NOERROR(x,y) ;\
34 bnslr ;\
35 b _C_LABEL(__cerror) ;\
36 END(x)
37
38 #define RSYSCALL_NOERROR(x) PSEUDO_NOERROR(x,x)
39
40 #define RSYSCALL(x) PSEUDO(x,x)
41
42 #define WSYSCALL(weak,strong) WEAK_ALIAS(weak,strong) ;\
43 PSEUDO(strong,weak)
44